Oral appliance



FIG. 1 is a front perspective view of an oral appliance showing my newdesign;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof; the right side elevationview being a mirror image thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The evenly spaced dashed broken lines in the figures illustrate portionsof the oral appliance that form no part of the claimed design.

The unevenly spaced dot-dash broken lines in the figures define theboundaries of the claimed design and form no part thereof.

CLAIM The ornamental design for an oral appliance, as shown anddescribed.